Arrays in C (Simple Beginner Guide with Examples)

When learning C programming, you will often need to store multiple values.

Instead of creating many variables, C provides a better solution:

👉 Arrays

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What is an Array?

An array is a collection of elements of the same type stored in one place.

👉 Example:
Instead of writing:

int a = 10;
int b = 20;
int c = 30;

You can write:

int arr[3] = {10, 20, 30};

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How to Declare an Array

int arr[5];

This creates an array that can store 5 integers.

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How to Access Array Elements

Each element in an array has an index.

👉 Index always starts from 0

printf("%d", arr[0]); // First element

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Example Program

#include <stdio.h>

int main() {
    int arr[3] = {10, 20, 30};

    for(int i = 0; i < 3; i++) {
        printf("%d\n", arr[i]);
    }

    return 0;
}

👉 Output:
10
20
30

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Important Points

• Index starts from 0
• All elements must be of same type
• Array size should be fixed

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Why Use Arrays?

Arrays help you:

• Store multiple values easily
• Write cleaner code
• Work efficiently with loops

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Final Thoughts

Arrays are a very important concept in C.

Once you understand arrays, you can solve many problems easily.

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Thanks for reading!